Check out which companies are making headlines before the bell:
Starwood Hotels—The hotel chain hired Lazard to explore strategic alternatives, saying no option was off the table. Separately, Starwood beat estimates on both the top and bottom line in its latest quarter.
Time Warner—The company reported adjusted quarterly profit of $1.19 per share, 10 cents above estimates, with revenue also above forecasts. The company was helped by "March Madness" programming related to the annual NCAA college basketball tournament.
Lumber Liquidators—The flooring products maker said it's been advised that the Justice Department is seeking criminal charges against the company relating to the importation of certain products, and that the DOJ probe will likely cost it about $10 million. The company also reported an unexpected loss, and said Chief Financial Officer David Terrell would depart in June.
Humana—The health care provider earned an adjusted $2.47 per share for its latest quarter, 9 cents below estimates. But revenue was above forecasts on strong membership growth, and Humana did reaffirm its full-year forecast.
Anthem—The health insurer reported adjusted quarterly profit of $3.14 per share, well above estimates of $2.67, though revenue fell below Street predictions. Anthem's results were helped by an increase in memberships for government medical plans like Medicaid.
Alibaba—Reports say the China-based online retail giant has imposed a hiring freeze, in an effort to make the company more efficient.
Garmin—The maker of GPS devices earned an adjusted 55 cents per share for its latest quarter, missing estimates by 2 cents, with revenue also missing the mark. Garmin was hurt by the strong dollar, as well as weaker sales of auto and outdoor-related products.
Twitter—The company is on watch today after it plunged more than 20 percent following the premature release of its quarterly earnings report yesterday. Twitter is investigating how the report got released early, but the numbers disappointed investors with revenue falling short of Street estimates.
GoPro—The high-definition camera maker beat estimates by 6 cents with quarterly profit of 24 cents per share, with revenue also well above expectations. GoPro got a boost from sales growth in Europe and Asia.
Wynn Resorts—Wynn reported adjusted quarterly profit of 70 cents per share, well short of the $1.30 consensus analyst estimate, and revenue missed as well. Additionally, the casino operator cut its dividend to 50 cents per share from $1.50. Wynn's results were hurt by a drop in revenue from its Macau operations.
Buffalo Wild Wings—The company missed estimates by 11 cents with quarterly profit of $1.52 per share, while the restaurant chain's revenue also fell short. The company was hurt by higher costs for chicken wings, although it did see a 7 percent increase in same-store sales at company-owned locations and a 6 percent increase at franchised outlets.
Kraft Foods—Kraft beat estimates by 5 cents with adjusted quarterly profit of 86 cents per share, though revenue was slightly shy of forecasts. Sales were down in spite of price increases that were designed to offset higher commodity costs.
Panera Bread—The restaurant chain missed estimates by 2 cents with adjusted quarterly profit of $1.41 per share, with revenue also below Street estimates. Panera is experiencing higher expenses from its plan to invest in and update its stores.
U.S. Steel—The steel maker posted an adjusted quarterly loss of 7 cents per share, surprising Street analysts who had expected a 12 cent per share profit. Revenue also missed estimates, as U.S. Steel said it has been hurt by significant steel imports. The company also lowered its earnings outlook for the full year.
Western Digital—The hard disk drive maker reported adjusted quarterly profit of $1.87 per share, 2 cents shy of estimates, with revenue very slightly short. Western Digital's profit did exceed year-ago levels, thanks in part to lower expenses.
Barclays—The bank added $1.2 billion to its reserve for potential settlements related to alleged foreign exchange manipulation.
Wal-Mart—The retailer announced plans to open 115 new stores in China by 2017, which would expand its store count in China by more than 30 percent.
Spectrum Brands—Spectrum will acquire Armored AutoGroup from private equity firm Avista Capital for $1.4 billion including assumed debt. Armored is the company behind the Armor All and STP auto product brands.